Steam actuated valve



(NoMod'eL) v 2 SheetsSheet 1. H. L. PERRINE. STEAM AOTUATED VALVE.

.No. 313,367; Patented Manfi, 1885.

Mv FEKERS, Plwmmhv men Washing xxxxxx z;

(No Model.) 2 Sheets-Shet 2.

H. L. PERRINE. STEAM AGTUATED VALVE.

No. 313,367. I v Patented Mar. 3, 1885.

UNITED STATES PATENT OFFICE.

H. LANSING PERRINE, OF NElV YORK, N. Y.

STEAM-ACTUATED vALv E.

SPECIFICATION forming part of Letters Patent No. 313,367, dated March 3, 1885.

(No model) T all whom it may concern:

Be it known that I, H. LANSING PERRINE,

a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Steam -Actuated Valves for Direct-Acting Steam-Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to steam actuated valves of direct-acting engines such as described in United States Letters Patent N 0. 269,319, granted to me December 19, 1882.

My improvement consists of such a construction and combination of the parts that the main slide-valve and the controlling-valve may be taken out of the steam-chest for inspection or repair without requiring the removal of the valve-rod and without sliding the valves either longitudinally or transversely.

In order that my invention may be clearly understood, I have illustrated in the annexed drawings and will proceed to describea practical form thereof.

Figure 1 illustrates a side elevation of a direct-acting steam-engine, the upper half of the main cylinder, the valve-chest, and superimposed valve-piston cylinder being shown in section. Fig. 2 is a transverse section in the plane indicated by the broken line X X of Fig. 1. Fig. 3 is an end elevation, the frame being shown in section. Fig. 4 is a plan of the main slide-valve, controlling-valve, and the rod for operating them. Fig. 5 is a perspective view of the main slide-valve.

The same letters of reference indicate identical parts in all the figures.

The ports of the main cylinder A are governed by the main slide-valve B, connected to move in unison with the valve-pistons D D, and operated in part, mechanically by the valve-rod O and in part by steam acting on the said valve-pistons, the admission of steam behind the said pistons and its exhaust being governed by the controlling-valve E, which is 50 operated entirely by the valve-rod O.

The general construction and mode of operation of these parts and the gear for connecting the valve-rod C with the main pistonrod are substantially the same as in the steamengine illustrated in my before mentioned 5 5 patent, and require, therefore, no detailed description.

is to be made to permit the turning of the valve-rod in its bearings when it becomes necessary to remove the, controlling-valve. For this purpose the valve-rod is, in this 1nstance, detachable from its knuckle Q, to which it is ordinarily connected by a pin, 0 The lug b is connected to the slide-valveBby a web, I), which, when the valve is in position, is on the plain side of the portion 0 of the valve-rod.

To remove the valve, the cylinder of the valve-pistons must be lifted off the valvechest. The main slide-valve may then be removed by lifting it at the same time that it is turned sufficiently to pass from under the valve-rod, and the controlling-valve can also be removed by first turning the valve-rod, whereby the valve will either be released or turned upside down, and then lifting the valve.

The exhaust f from the controlling-valve contains a valve, F, by which it may be throttled more or less to retard the motion of the valve-pistons.

It will be observed that the valves are removed without retracting the valve-rod and without sliding them either longitudinally 0r transversely. Thus, while the construction and connection of theflparts provide for the convenient removal of the valves, no undue enlargement of the steam-chest is required, and the valve-rod may be constructed with permanent means for engaging the valves, al-

though detachable means may be used, if prewithout sliding them either longitudinally or 10 ferred. transversely. l

I claim as my invention In testimony whereof I aflix my signature in The combination, siubstaintially as before set presence of two witnesses.

5 forth of the main sli e-Va ve the controllin T T valve, and a single valve-rod engaging both LAB SILG PDRRINE' valves, the parts being constructed andcon- Witnesses: neeted, substantially as described, so thatboth B. M. ESPY, valves may be removed from under the rod ROGER MOGARRY. 

